Power tiller



FIG. 1 is a front view of a power tiller showing a new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a left front perspective view thereof; and,

FIG. 8 is a right front perspective view. 

The ornamental design for a power tiller, as shown and described. 